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Search Results: 1 - 10 of 10358 matches for " Carmen Vicol "
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D. Gogalniceanu,Daniela Trandafir,Carmen Vicol,Violeta Trandafir
Jurnalul de Chirurgie , 2006,
Abstract: Ossifying fibroma is a rare, benign fibro-osseous tumor that most commonly occurs in the bones of the craniofacial skeleton. This well-demarcated lesion is composed of fibrocellular tissue and mineralized material of varying appearances. Ossifying fibroma is a slow-growing, asymptomatic neoplasm that can reach a very large size. Differentiation from other forms of fibro-osseous lesions, such as monoostotic fibrous dysplasia, is often quite difficult. This paper presents a rare case of a voluminous mandibular ossifying fibroma which gave us serious problems of diagnosis and treatment. We have performed a bloc osseous resection which has preserved the alveolar border and has permitted (by apical resections) the conservation all the dents which apical roots were included in the tumoral aria. Surgical treatment in this case has also needed (in the same operation) a reconstructive surgery (because of the estetic and functional considerents). The defect created by the excision of this large lesion was reconstructed with an iliac bone graft and a titanium reconstruction's atela.
Daniela Trandafir,D. Gog?lniceanu,Violeta Trandafir,Carmen Vicol
Jurnalul de Chirurgie , 2007,
Abstract: Lipomas are the most commonly encountered benign mesenchymal tumors, arising in any location where fat is normally present. Their occurence in the head and neck area is relatively rare (25% of lipomas). Lipomatous lesions accounted for only 0.6-4.4% of all parotid tumors and, therefore, are often not considered in the initial differential diagnosis of a parotid mass. 14 cases of lipomatous tumors of the parotid glands (1.5% of all parotid tumors) have been diagnosed and treated in our department during 15 year-period (1992-2006); six were focal lesions and eight were diffuse lipomatosis. The most common presentation was that of a slowing enlarging, soft and painless mass. Clinical examination alone is insufficient to identify the nature and location of parotid lipomas. Ultrasonography, high-resolution CT scanning, magnetic resonance imaging (MRI) and fine needle aspiration biopsy (FNAB) may be helpful in diagnosis. None of these preoperative examinations allows an absolute reliable distinction between a lipoma and a liposarcoma. All patients were treated by surgical excision. Superficial parotidectomy was the treatment of choice and no recurrence was detected in 3 years (mean period) of follow-up. Surgical intervention in these tumors is challenging because of the proximity of the facial nerve, and thus, knowledge of the anatomy and meticulous surgical technique are essential. The postoperative aesthetic and functional results were the major concerns. The complete surgical excision will minimize the possibility of a recurrence and will also lead to a definitive diagnosis.
G. Melian,D. Gogalniceanu,Carmen Vicol,Otilia Lupascu
Jurnalul de Chirurgie , 2005,
Abstract: Necrotizing fasciitis is a severe group A -hemolytic streptococcus infection that leads to necrosis of the subcutaneous tissue, adjacent fascia and blood vessels. It is a rare, rapidly progressing condition, with a poor prognosis and a mortality rate as high as 74%. Over a period of 11 years, 4616 with odontogenic infections were admitted to O.M.F. Surgery Department of Iasi. Out of these 4616 patients, we established the necrotizing fasciitis diagnosis just in 4 cases. Treatment must be immediately initiated consisting in oro-tracheal intubation, cardiovascular monitoring, antibiotherapy, large surgical debridement and excision of necrotic tissue, hyperbaric oxygen therapy. After acute inflammation resolution, skin surgical reconstruction is needed.
V.V. Costan Eugenia Popescu,Carmen Vicol,C. Drochioi,Otilia Boi?teanu
Jurnalul de Chirurgie , 2012,
Abstract: BACKGROUND: Indifferent to the origin (congenital or acquired) the facial deformities are difficult to be accepted by the patients. The ideal technique is a simple procedure, with minimal trauma for the patient and with predictable results. The lipostructure can be considered one of these types of reconstruction method and we present our experience with. METHODS: We had used lipostructure at 8 patients for the plasty of postoperative defects (5 after resection of parotidian or cutaneous malignant tumors and 3 for parotidian benign tumors) or for correction of facial asymmetry in 2 patients with Parry-Romberg syndrome. The fat was harvest from periumbilical region or from tight areas and centrifuged. The resulted fat was injected in interested region in tridimensional fashion in a variable volume, 10-45 mL/surgical procedure. The technique was repeated at minimum 6 month (4 times in 2 cases and 2 times in 2 cases) if necessary. RESULTS: The postoperative result was very good. It was a substantial improving in aesthetics but also in quality of the soft tissues. The aspect is important because in most of the patients, at the deformities areas were scares or/and irradiated tissues.CONCLUSIONS: The lipostructure is a reliable method that permits good aesthetic results with a minimal trauma and discomfort for the patient.
C. C. Ciocan – Pendefunda,Carmen Vicol,Eugenia Popescu,V. V. Costan
Jurnalul de Chirurgie , 2011,
Abstract: Introduction: Long – term facial palsy appears in patients who undergone surgical procedures with the interrupting the continuity of the facial nerve. The resulting lagophthalmos must be treated in order to prevent visual problems. The treatment is complex, consisting in conservative and surgical methods. This study describes the experience of our unit with the use of gold weight implant in the upper eyelid for lagophthalmos. Material and method. We present 5 cases operated in the Oral and Maxillofacial Surgery Department Iasi treated using the same technic. In all patients the gold plate was shaped prior to surgical procedures. The implant was inserted between the tarsus and orbicularis muscle. Results. The postparotidectomylagophthalmos was successfully treated in all situations. The scar from upper eyelid was camouflaged. The ocular symptoms disappeared in every case. Discussions. The treatment of lagophthalmos must solve the functional problems of the eye and also the esthetic issue. Nowadays, the most common technic used for the correction of lagophthalmos is the insertion of a gold weight in the upper eyelid. In some cases there are necessary surgical procedures for the ectropion consecutive to facial palsy. Conclusions. This technic with gold implant is safe, cheap and repeatable for the correction of paralytic lagophthalmos. Sometimes we have to perform interventions in the lower eyelid also. The postoperative complications are rare.
Preliminary study using lichen species diversity as an indicator of local environmental quality within two nature reserves from Romania
Analele Universitatii din Oradea, Fascicula Biologie , 2011,
Abstract: Within this study was emphasized the difference between the high degree of conservation of Glodeasa Forest Reserve and the impact of eutrophication as a result of human activities from M lu teni Nature Reserve using lichen species diversity. The major human activities with a strongly impact on environment quality in M lu teni Nature Reserve area are following: the livestock operations and the crop farming. A comparative assessment on the two protected areas pointed out a significantly differences regarding the preferences of inventoried lichen species to nitrophily. Thus, it was recorded a highest percentage (67%) of nitrophilous lichen species within M lu teni Nature Reserve in contrast with a highest percentage (93%) of anitrophilous lichen species inventoried from Glodeasa Forest Reserve. The prevailing of some rare and threatened lichen species within Glodeasa Nature Reserve represent a sensitive indicator of highest environmental quality.
Preliminary study on epiphytic lichens as an indicator of environmental quality in forests from around Bucharest Municipality (Romania)
Analele Universitatii din Oradea, Fascicula Biologie , 2010,
Abstract: The epiphytic lichens were investigated for three forests situated around Bucharest Municipality. The comparative historical background studies concerned with epiphytic lichens in relation to environmental conditions were related. Five variables close related with the distance was analysed within this study, as follow: (1) in close correlation with the distance, the taxonomic analysis reveals a major significance regarding the dominant roll of the genera with a low epiphytic lichens diversity, within the Andronache Forest, unlike Cernica and Pustnicul Forest where, the number of genera is do not significantly owing increasing species number; (2) regarding the substrate, epiphytic lichens species from all investigated forests prefer trees with a roughly rhytidoma. Trees sampled in a great deal belong to the Quercus genus with a roughly rhytidoma facilitating a good growing of epiphytic lichens species because keeps for a long periods of time a high degree of humidity; (3) the analysis of toxi-tolerance degree has shown how the sensitive epiphytic lichens species to pollution is increasing depending on the distance; (4) autsozological categories are marked in a great deal by a great distance from an urban Bucharest area. Thus, the number of rare and disappearing lichens species is increasing direct proportional depending on the distance from the Bucharest Municipality area to investigated forests due to improvement of the environmental quality; (5) from geographical distribution of lichens species point of view, take a place an increasing number of epiphytic lichens species which is close correlated with the distance from Bucharest Municipalityarea to investigated forests. In addition, a great importance was conferred the presence of rare and disappearing epiphytic lichensspecies nearest perturbation area of Bucharest Municipality (Andronache Forest). This fact is possible to occur owing to thedirection of prevailed winds. It was used of sensitivity values of epiphytic lichens species to quantify spatial gradients inenvironmental alteration.
Analyticity and Gevrey-class regularity for the second-grade fluid equations
Marius Paicu,Vlad Vicol
Mathematics , 2009, DOI: 10.1007/s00021-010-0032-z
Abstract: We address the global persistence of analyticity and Gevrey-class regularity of solutions to the two and three-dimensional visco-elastic second-grade fluid equations. We obtain an explicit novel lower bound on the radius of analyticity of the solutions to the second-grade fluid equations that does not vanish as $t\to \infty$. Applications to the damped Euler equations are given.
Global well-posedness for an advection-diffusion equation arising in magneto-geostrophic dynamics
Susan Friedlander,Vlad Vicol
Mathematics , 2010, DOI: 10.1016/j.anihpc.2011.01.002
Abstract: We use De Giorgi techniques to prove H\"older continuity of weak solutions to a class of drift-diffusion equations, with $L^2$ initial data and divergence free drift velocity that lies in $L_{t}^{\infty}BMO_{x}^{-1}$. We apply this result to prove global regularity for a family of active scalar equations which includes the advection-diffusion equation that has been proposed by Moffatt in the context of magnetostrophic turbulence in the Earth's fluid core.
The Domain of Analyticity of Solutions to the Three-Dimensional Euler Equations in a Half Space
Igor Kukavica,Vlad Vicol
Mathematics , 2010,
Abstract: We address the problem of analyticity up to the boundary of solutions to the Euler equations in the half space. We characterize the rate of decay of the real-analyticity radius of the solution $u(t)$ in terms of $\exp{\int_{0}^{t} \Vert \nabla u(s) \Vert_{L^\infty} ds}$, improving the previously known results. We also prove the persistence of the sub-analytic Gevrey-class regularity for the Euler equations in a half space, and obtain an explicit rate of decay of the radius of Gevrey-class regularity.
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